Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×
Hardware

Building a CDR/CD-RW Appliance? 21

Fafhrd asks: "My father has developed a new hobby: He records music shows from his satellite dish TV, digitizes the music, and burns a CD to listen in his car. We tried digitizing to the computer as the show runs, but it's cumbersome, as we have to drag the computer across rooms to plug the dish box's Audio-Out into the sound board's Audio-In. So, I'm planning to build a device to do it for him. Just a ATX baby board with sound, a CD-RW and a big HD. Any ideas on what hardware is the best for this? Where can I find a case compact enough to house it, and not look out of place beside the VCR and the dish set-top box?"
This discussion has been archived. No new comments can be posted.

Building a CDR/CD-RW Appliance?

Comments Filter:
  • by Anonymous Coward
    Why not put a VCR in the car? The audio capability of a hi-fi VCR is near CD quality. (and I don't mean MP3 "near CD quality" which IMHO is more like "near FM quality", but has frequency range and noise specs very close to CD and no compression is involved)

    This was done more often in the pre-CD-R days for people that wanted quality home recordings in the car. The VCR could be put under a seat and the line outputs hooked to CD inputs or an FM antenna converter, the video output is ignored. The VCR could be controlled by the front panel if placed close to the driver or passengers, or the remote assuming line of sight or RF remote.

    Hi-fi VCRs and tapes are easy to find and inexpensive. Tapes can be reused and hold hours of quality audio. Tapes are much more resistant to bumps, but probably less resistant to dust than a CD. If your like most sat-TV owners you already have a VCR in the home, and it's capable of recording unattended, that way you can get the music recorded easily.

    This may be beyond some people's skills or desires, since it involves hacking your car but it's another angle to tackle your problem.
  • Also a few of the VCRs that record in stereo do so by splitting the mono track, as opposed to encoding it on the video track.

    That is exactly the difference between "stereo" VCRs and "Hi-Fi Stereo" ones. The former existed several years before the latter.
    --
  • An off-the-shelf device is the Terapin [goterapin.com], a $500 CD audio/video recorder.

    Or you could run some more cable to your wiring closet and feed the audio across the house to the computer, along with an IR/RF remote (or repeater) for remote control of the computer and a speaker so the computer can reply to commands...or a network terminal of some sort (WebTV? Webplayer? iOpener?) for chatting with the computer.

    There also are wireless audio devices which could send the audio across the house to the computer. X10.Com [x10.com] has some, and I see that CompUSA [compusa.com] has one on sale this week.

  • by SEWilco ( 27983 ) on Wednesday May 16, 2001 @05:25AM (#220186) Journal
    A book-sized PC does sound about right. A Google [google.com] search for "book pc" shows several sources. I see that EZ-BookPC [ez-bookpc.com] has several pretty devices, including some with video outputs.
  • check this out for $495 : http://www.intrinsyc.com/products/referenceplatfor ms/cerfcube_linuxspecs.html
  • Speaking as the originator of this AskSlashdot...

    Putting another computer on the car is a very different project ;) Take a look at http://www.empeg.com (now the RioCar, or something like that). I think building our little appliance will be easier, actually (think about car vibration).

    By slim-line case, you're saying something like those "pizza box" computers? Haven't seen them being sold around here lately... Any websites?
  • Agreed on the "good excuse for hacking"... That's what drew me to this project, actually.

    I haven't heard much about MiniDiscs lately, how much would you expect these (a recorder and a portable player) to cost? I'll look into that...

    Actually, DirecTV receivers in Brazil don't have SPDIF. I'm actually using a plain-vanilla RCA-to-line-in cable directly to the computer. That's an improvement, as my father wanted to use cassette tapes as a transfer device... Until he heard how the first one sounded like ;)
  • Actually, I'm talking about what I see available around here. Keep in mind that I live in Brazil, and I haven't ever seen a FlexATX board. However, they sound intriguing.

    That said, I could always try buying one on the 'net... Do you recommend any sites?

    If I could find a Celeron-level (I'd prefer Duron, but I'm afraid it would generate too much heat) board with an Creative onboard audio, I'd be set...
  • Great link!

    This package is really nifty. I'll download it and take a look.

    However, it seems to be more of a media player app. And closed source, at that. ;( Were it free software, I'd work on a sound recorder for it...
  • This Terapin sounds perfect!

    I'll show it to my family, and if they are so inclined, that will be the way.

    Too bad it has little hack value... I'd still prefer building one myself ;)
  • This seems to be just what I was thinking about! The size is just about right.

    Thanks, I'll look into this further.
  • Cool concept. However, I think this particular board is a bit too small for what I have in mind. I don't see an IDE connector on the specs. Is there such a thing as a CompactFlash CD-RW? It's probably very expensive anyway.

  • I agree with GroovBird. MiniDisc is a good solution in comparision to a book pc. Here in the states, a portable minidisc recorder will cost US$200 at the most. Plus you can easily erase and re-record. Finished recording the show? Take the whole kit into the car and away you go. try www.minidisco.org for pointers.
  • by stienman ( 51024 ) <adavis@@@ubasics...com> on Wednesday May 16, 2001 @10:51AM (#220196) Homepage Journal
    You can get a bookPC without the cpu and memory for under two hundred, which looks nice next to the other audio/video components, and runs fairly cool. Drop a cdr into that, write your own app and you're done. Best of all, most book PCs output video so you can write your own tv controller app, and use a remote to program it.

    -Adam

    Honk if you've never seen a bazooka fired out a car window.


    This sig 80% recycled bits, 20% post user.
  • ...MediaBox [media-box.org]. Pretty nifty li'l app the guy's put together, not that I can vouch for it.
    At any rate, a Book PC [google.com] would be the sort of form factor that you're looking for if non-obtrusive is the order of the day.
  • It looks that way, but he's also working on TiVo-like features, which means you're just a small-ish step away from shooting the audio from TV shows down to CD. Or somesuch.
    I thought it was going to be opened up after development was stable? Whatever.
  • I bought the one bare-bone Book PC with S-Video out and S/PDIF digital audio recently, supposedly to connect to my receiver as "media terminal", to play mp3 and divx off my linux/samba server. I put a Celeron 700 and 128MB ram in it. Here is my experience:
    • It runs quite hot.
    • It is somewhat noisy.
    • I never got the S/PDIF interface working. The analog audio is terrible.
    • The cpu fan connector only has ~5v votage but the cpu fan (came with bookpc, ultra low profile) needs 12v. so the cpu fan doesn't ran. Finally I "fixed" it by routing 12v to the fan, but I lost the ability to look at its RPM. This is vendor dependent, you may not have the same problem.

    The final outcome is I gave it to my Dad for web-surfing. Next time, I'll choose a quiet ATX box with modular (vs. all-in-one) components.

    Maybe a little OT, but hey it's informative...

  • Did you want to do this real-time? If you do you may have to look into SCSI. As for the cheap solution, I would still go with a SCSI burner, and a big ass IBM HD
  • uATX boards are generally considered 'budget' hardware, and as such, seldom have great onboard sound. You may or may not notice the worse signal/noise ratio on the inputs/ADs..

    ...

    Why limit yourself to uATX? Since you don't expect much from the hardware, you might find a smaller FlexATX or even 'book PC' type device suits your needs better. If you want to get really creative, I'm sure you could rig up a custom number with some single-board system, and stick it into most any enclosure you can find...
  • Sometimes the problem is a good excuse to start hacking away like a lumberjack (and that's ok) until it gets you to work all night and sleep all day.

    Seriously, what I'd do is place my MiniDisc recorder with the TV top and use a portable MiniDisc player (or another set top recorder) to hook it up to my PC.

    Advantages:
    1- It has a remote control, so you can start recording at will at anything you see.
    2- It automatically breaks tracks up when there's a slight pause (and on music-only channels like MTV, this is the case)
    3- Given a high quality digital sattelite receiver, you can use SPDIF to capture the music digitally from the start. If not, the AD converter of the MDS-JB920 (that I have) is far superior than most soundcards on the market today (remember: your PC is a noisebox)
    4- Given a SoundBlaster Live or any other soundcard with SPDIF, I can digitally transfer music from my recorder to my PC and turn it into MP3s, or burn it on a CD.

    Remember: garbage in means garbage out.
  • HAve him record it in .wav format, then do it to .mp3
    Then, you could put another computer in the trunk of his car to play the music for him over his car stereo. you wouldn't even have to deal with the cd's.
    But, for you case question, a slim-line case spray painted black should look fine.

He has not acquired a fortune; the fortune has acquired him. -- Bion

Working...